accepts method
- KeyEvent event,
- HardwareKeyboard state
Whether the triggering event and the keyboard state at the time of the
event meet required conditions, providing that the event is a triggering
event.
For example, for Ctrl-A, it has to check if the event is a
KeyDownEvent, if either side of the Ctrl key is pressed, and none of the
Shift keys, Alt keys, or Meta keys are pressed; it doesn't have to check
if KeyA is pressed, since it's already guaranteed.
As a possible performance improvement, implementers of this function are encouraged (but not required) to check the triggers member, if it is non-null, to see if it contains the event's logical key before doing more complicated work.
This method must not cause any side effects for the state. Typically
this is only used to query whether HardwareKeyboard.logicalKeysPressed
contains a key.
See also:
- LogicalKeyboardKey.collapseSynonyms, which helps deciding whether a modifier key is pressed when the side variation is not important.
Implementation
@override
bool accepts(KeyEvent event, HardwareKeyboard state) {
if (event is! KeyDownEvent && event is! KeyRepeatEvent) {
return false;
}
return triggers.contains(event.logicalKey)
&& _checkKeyRequirements(state.logicalKeysPressed);
}